多元函数条件极值是高等数学的重要内容之一,本文从等式约束、区域约束、拉格朗日乘子法和单位向量约束下二次型最值问题四个角度切入,力图全面介绍高等数学中有关多元函数极值的问题.
Conditional extremum problem of multivariate function is an important topic in advanced mathe matics. This paper introduces four methods (equality constraints, boundary constraint, Lagrange multipli er, and the unit vector constraint quadratic form) to solve the problem.